My PS3 outer side thread crack is becoming really bad, chunks are missing now...very good overall tires, but the quality is bad...the tires should NOT be sold until they solve the issues...but because this is Malaysia....anything goes
I've used 3 sets of PS3. 1st set on my car worn out at 30k or 1yr+., tyre wear evenly and no complains on grip even when left with 20% thread. But it was hard and noisy after 20k.
2nd set on my wife's car took 3 years+ to wear out @40k, by the time I noticed it, the thread blocks also started to break off in small chunks but grip was still fantastic and no balancing issue whatsoever. It was also hard and noisy at that mileage.
3rd set PS3 on my car still new, nice, comfortable and grippy in 215/50/17.
I've previously used GY F1 Assy 2 in 215/45/17, compared to 1st set of PS3 in the same size, F1 had better grip, more comfortable, and quieter that the PS3.
F1 in 215/45/17 compared to PS3 in 215/50/17, F1 grips better, same comfort, but PS3 is quieter in this size when new.
Nexen N8000 - not good, weak sidewall, see my comments in 215/50/17 thread.